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| author | David Wu <david.wu@rock-chips.com> | 2016-05-16 22:05:03 +0800 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2016-06-17 13:55:03 +0200 |
| commit | 7e086c3fc2df099f82371f320fef8d683f050be4 (patch) | |
| tree | b58fc6f57355fc3308ddc4dd42758b68916bc98d /Kconfig | |
| parent | 908dbd539135f8bea04039dad1a667a3a36d7b42 (diff) | |
| download | linux-7e086c3fc2df099f82371f320fef8d683f050be4.tar.bz2 | |
i2c: rk3x: add i2c support for rk3399 soc
- new method to caculate i2c timings for rk3399:
There was an timing issue about "repeated start" time at the I2C
controller of version0, controller appears to drop SDA at .875x (7/8)
programmed clk high. On version 1 of the controller, the rule(.875x)
isn't enough to meet tSU;STA
requirements on 100k's Standard-mode. To resolve this issue,
sda_update_config, start_setup_config and stop_setup_config for I2C
timing information are added, new rules are designed to calculate
the timing information at new v1.
- pclk and function clk are separated at rk3399
Signed-off-by: David Wu <david.wu@rock-chips.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
[wsa: fixed whitespace issue]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions